The Sovanco Fracture Zone is a right lateral-moving
transform fault
A transform fault or transform boundary, is a fault along a plate boundary where the motion is predominantly horizontal. It ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subducti ...
and associated
fracture zone
A fracture zone is a linear feature on the ocean floor—often hundreds, even thousands of kilometers long—resulting from the action of offset mid-ocean ridge axis segments. They are a consequence of plate tectonics. Lithospheric plates on ei ...
located offshore of
Vancouver Island
Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia. The island is in length, in width at its widest point, and in total area, while are of land. The island is the largest by ...
in
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tota ...
. It runs between the northern end of the
Juan de Fuca Ridge
The Juan de Fuca Ridge is a mid-ocean spreading center and divergent plate boundary located off the coast of the Pacific Northwest region of North America. The ridge separates the Pacific Plate to the west and the Juan de Fuca Plate to the eas ...
and the southern end of the
Explorer Ridge
The Explorer Ridge is a mid-ocean ridge, a divergent tectonic plate boundary located about west of Vancouver Island, British Columbia, Canada. It lies at the northern extremity of the Pacific spreading axis. To its east is the Explorer P ...
, forming part of the boundary between the
Pacific Plate
The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. At , it is the largest tectonic plate.
The plate first came into existence 190 million years ago, at the triple junction between the Farallon, Phoenix, and I ...
and the
Explorer Plate. To its west lies the
Explorer Seamount.
References
Cowan, Darrel S.; Botros, Mona; Johnson, H. Paul, 1986, ''Bookshelf tectonics: rotated crustal blocks within the Sovanco fracture zone'', Geophysical Research Letters, Volume 13, Issue 10, p. 995-998, abstract
{{BritishColumbiaCoast-geo-stub
Fracture zones
Geology of British Columbia
South Coast of British Columbia
Oceanography of Canada